超低温铝电解电容器电解液的制备及其应用  

Preparation and application of electrolyte for ultra-low temperature aluminum electrolytic capacitors

作　　者：耿茹茹 张宇[1] 陈京帅 柏家奇 孙松 吴明元[1] 毛昌杰[1] GENG Ruru;ZHANG Yu;CHEN Jingshuai;BAI Jiaqi;SUN Song;WU Mingyuan;MAO Changjie(School of Chemistry and Chemical Engineering,Anhui University,Hefei 230601,China)

机构地区：[1]安徽大学化学化工学院,安徽合肥230601

出　　处：《应用化工》2024年第9期2039-2042,共4页Applied Chemical Industry

基　　金：国家自然科学基金(21706002);安徽省自然科学基金面上项目(2308085MB60)。

摘　　要：以制备工作下限温度为-55℃的超低温铝电解电容器电解液为研究目的,通过对二元混合溶剂的凝固点的分析以及对溶质和添加剂的选用,将各种物质进行正交实验、优化配制技术。制备出的电解液的冰点低于-55℃,闪火电压(Us)≥496 V。将该电解液应用于规格为400 V,10μF的铝电解电容器,对电容器进行低温特性、高温负荷和高温耐久试验。结果表明,该电解液制备的电容器可在-55~105℃的环境下工作至少5 000 h。The preparation of electrolytes for ultra-low temperature aluminum electrolytic capacitors,aiming for a lower operational limit of-55℃.By analyzing the freezing points of binary mixed solvents and selecting appropriate solutes and additives,orthogonal experiments were conducted to optimize the preparation process.The resulting electrolyte has a freezing point below-55℃and a flash voltage of≥496 V.When applied to a 400 V,10μF aluminum electrolytic capacitor,the electrolyte was tested for low-temperature characteristics,high-temperature load,and high-temperature durability.The results indicate that the capacitor using this electrolyte can operate for at least 5000 h within the temperature range of-55℃to 105℃.

关 键 词：铝电解电容器 工作电解液 超低温 

分 类 号：TQ152[化学工程—电化学工业]